chemical coating, constructing support mounts for objects, doing additional cleaning in a dry, stable environment. b. altman goal is to put these into the gallery and be able to share as much of the story of how these pumps operated, how they were made, what you're used for, their historical accounts from the sinking. we know that up to last when water put out the oilers, the pumps stopped moving. those are the things to consider is when dupont got here, the valve was still in position at its last moment. the think of the crew of monitor and the things they experienced and the struggles that they undertook to preserve c it ison and how ironi that today 100 petite years later they are still serving the nation in ways they could never have imagined, helping us understand marine conservation, understanding our past, and helping us look forward and learned from the lessons of the past. >> this weekend, looking at the history and literary lights for virginia beach, virginia, including more from the mariners' museum, saturday and noon eastern on c-span2. and sunday at 5:00 on american on c-span3. >> wa